Flotation aid



FIG. 1 is an isometric view of a flotation aid, showing our design;

FIG. 2 is a front view thereof, the rear view being the same as the front view;

FIG. 3 is a left side view thereof, the right side view being the same as the left side view;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a top view thereof. 

The ornamental design for a flotation aid, as shown and described. 